EP1206378B1 - Wiper blade for cleaning a windscreen, in particular, a curved windscreen of a vehicle - Google Patents

Wiper blade for cleaning a windscreen, in particular, a curved windscreen of a vehicle Download PDF

Info

Publication number
EP1206378B1
EP1206378B1 EP00954592A EP00954592A EP1206378B1 EP 1206378 B1 EP1206378 B1 EP 1206378B1 EP 00954592 A EP00954592 A EP 00954592A EP 00954592 A EP00954592 A EP 00954592A EP 1206378 B1 EP1206378 B1 EP 1206378B1
Authority
EP
European Patent Office
Prior art keywords
claw
wiper
wiper blade
yoke
lugs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00954592A
Other languages
German (de)
French (fr)
Other versions
EP1206378A1 (en
Inventor
Bruno Egner-Walter
Wilhelm Dörr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Wischersysteme GmbH
Original Assignee
Valeo Wischersysteme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Wischersysteme GmbH filed Critical Valeo Wischersysteme GmbH
Publication of EP1206378A1 publication Critical patent/EP1206378A1/en
Application granted granted Critical
Publication of EP1206378B1 publication Critical patent/EP1206378B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3801—Wiper blades characterised by a blade support harness consisting of several articulated elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3813—Means of supporting or holding the squeegee or blade rubber chacterised by a support harness consisting of several articulated elements

Definitions

  • the invention relates to a wiper blade for cleaning a in particular curved disc on a vehicle with a Support frame with at least two claws to hold and Run a rubber-like wiper strip, the support frame at least one claw bracket with a claw on at least has a temple end and the claw bracket in one Distance from the claw via a swivel bearing with a Wiper arm connectable or with another bracket of the Support frame is connected, the claw in the claw base one in the operating state of the wiper on the Has pressing surface on top of the wiper strip, that in the longitudinal direction of the temple by an outer edge and a inner edge is limited and has a maximum length, and being from the claw bottom towards the wiping two pane along the opposite Claw walls running along the length of the wiper strip going out, which change into claw approaches, which the to the Reach in under the wiper strip or in lateral longitudinal grooves of the back bar engage, the Claw attachments in the longitudinal direction of the temple each by one outer edge and an inner edge are limited.
  • a wiper blade with such a claw has long been for example from DE-B-1,197,338, known and found in almost every windshield wiper device used today for Cleaning a window on a motor vehicle use.
  • the wiper strip of such a wiper blade is in the Claws can be moved longitudinally at least to a limited extent arranged that an adjustment of the elastic wiper strip largely to the surface shape of the window to be wiped is made possible.
  • the arranged on a claw bracket Claws are used to guide the wiper strip along the to wipe the window and to transfer the necessary Pressing force on the wiper strip, the washer also can have a curved shape. It is with the Designing claws to take into account that these are the Wiper strip or its back strip as narrow and lead precisely. Nevertheless, the wiper strip must be in the claw have enough play to allow for longitudinal displacement Allow wiper strip in the claw.
  • the wiper strip can be made with the known Wiper blades cannot be loosened.
  • Claws of known wiper blades for, especially on the Disc edges, strongly curved discs clamps the Wiper strip either because of its curvature or because of it swims in the claw because of the too big game, so that optimal guidance of the wiper strip is not is guaranteed.
  • the result is an unsatisfactory one Wiping result.
  • the present invention is therefore based on the object based on a wiper blade with claws at least partial inclusion of a rubber-like wiper strip create good leadership and good Longitudinal displacement of the rubber-like wiper strip in the Claws also in the case of arched or arched sections Washer is guaranteed.
  • a wiper blade is used at the beginning described type proposed, in which the claw approaches at least one claw of the wiper blade in Temple longitudinal direction in relation to the contact surface in the Claw base so in the direction of the pivot bearing of the Claw bracket are offset that the outer edges of the Claw attachments are arranged within an area, which is from including half the maximum length the contact surface up to the distance between the inner Edge of the support surface and the swivel bearing of the Claw bracket extends.
  • a outer edge of the contact surface in the claw base or a outer edge of a claw attachment always the edge that points outwards in the longitudinal direction of the temple.
  • an inner edge of the contact surface in the claw base or a inner edge of a claw attachment always the edge that points inwards in the longitudinal direction of the temple.
  • this fact can also be expressed in this way be that with at least one claw of the wiper blade the claw projections projected onto the disc in relation to the contact surface projected onto the disc in Direction to the swivel bearing of the claw bracket are that the claw projections projected onto the disc from the contact surface projected onto the disc in Longitudinal direction of the claw bracket not or at most from the half of the pivot bearing facing the disc projected contact surface are overlapped.
  • the claw designed according to the invention can various supporting frame or bracket constructions be used.
  • a person trained in accordance with the invention can thus Claw bracket, for example, directly on the wiper arm articulated main bar with one claw on each End or one hinged to a parent bracket Claw bracket with one claw at one end or one Bracket with a claw on only one end and one Claw bracket at its other end.
  • It can also Carrying frame of a wiper blade have two brackets that each connected at one end via a joint and at least one of these brackets on its other End has a claw designed according to the invention.
  • the Invention is also intended to wiper blades with such Support frame or bracket structures include where the claw or claws are not on the underside of the Arranged bracket, but for example laterally on or are arranged or formed laterally from the bracket.
  • Wiper blades for all possible panes such as Windshields, rear windows, side windows, (general Viewing panes), headlight panes, rear lamp panes, Reflectors and the like, at different Vehicles, especially motor vehicles, are used can.
  • the wiper blade according to the invention has the advantage that even in the case of strongly curved panes, one compared to known ones Wiper blades better adjust and guide the rubbery Wiper strip on the window to be wiped is guaranteed. A jamming of the wiper strip in the claw as it does after the state of the art for more curved panes According to the invention, this is regularly the case occur.
  • the cross-section relevant for the wiper strip is calculated from the width b of the claw and that of the claw part of the wiper strip relevant opening dimension c the claw.
  • the opening dimension c is determined as Hypotenuse of the triangle with distance catheters d and the claw height a. It follows that if d is greater than or equal to zero, the opening dimension c is greater than or is equal to the claw height a. Hence, is ensures that the one picked up by the claw Part of the wiper strip relevant cross-section of the claw according to the invention always greater than or equal to the claw height a is, especially with curved panes.
  • Through the necessary freedom of the wiper strip in the claw is one Longitudinal displacement of the wiper strip is always possible and one The wiper strip does not jam, causing a correspondingly good wiping result is achieved.
  • the two claw attachments in side view of the wiper blade, the two claw attachments the distance d should be in alignment with each other Claws should be the same size. This will make one uniform guidance and power transmission of the wiper strip the disc allows.
  • a further development of the invention provides that the Wiper strip is curved in top view and that the distance d1 of the one claw attachment on the claw side that on the outside of the wiper strip bend is smaller than the distance d2 on the other claw side, that on the Is inside the wiper strip bend.
  • Such Further development of the invention has the particular advantage that not only an optimal adjustment of the wiper strip a strongly curved disc is guaranteed, but that also when using a curved top view Wiper the claw is designed so that the Wiper strip in its longitudinal movement not by Claw is hindered.
  • Curved in top view Windshield wipers are predominantly stylistic and aesthetic reasons in motor vehicles use.
  • Distances d1 and d2 depending on the degree of the top view curved wiper strip. For example, only slightly curved Wiper strips is the difference between the distances d1 and d2 smaller than in the case of a particularly strongly curved one Wiper strip. This can be an optimal Longitudinal displacement of the wiper strip also in Top view curved wiper strips can be guaranteed.
  • a variant of the invention provides that the Wiper strip facing side of the claw base with respect the claw approaches and / or the claw approaches in relation to the base of the claw is convexly or are arched. By such bulges will allow the Longitudinal displaceability of the wiper strip, especially at Discs with very different curvatures, improved becomes.
  • a further development of the invention provides that the at least one claw on the claw bracket an end claw of the wiper blade.
  • An end claw is the claw on a wiper blade, which on the outer edge of the window next lies.
  • disks of motor vehicles usually more domed than in the middle Disk area. That's why it makes sense there Use claws that provide optimal guidance and Power transmission of the wiper strip to the, especially strong ensure arched, disc sections.
  • FIG. 1 shows an example of a wiper lever 1 known windshield wiper device for cleaning a Washer on a motor vehicle with a main bracket 2 which are symmetrically arranged two brackets 3, which are in turn connected to claw brackets 4.
  • the Claw bracket 4 are by means of the pivot bearings 15 articulated with respect to the brackets 3.
  • At her opposite ends have the claw brackets 4 on their a claw 5 each on the side facing away from the main bracket 2.
  • the Claws 5 take them to a rubber-like wiper strip 6 belonging back bar 6a, in particular by Spring rails, not shown, in the longitudinal grooves of the Back bar 6a can be reinforced.
  • the main bracket 2 also directly as Claw bracket can be formed by on his opposite ends each have a claw is provided.
  • Figure 2 shows a claw bracket 4 with a Pivot bearing 15 at a distance D from the at least one Claw 5, two at the ends of the claw bracket 4 known claws 5 are arranged. Take these claws 5 the back bar 6a belonging to the wiper bar 6 on that on its side facing away from the claw bracket 4 Wiping edge 7 has.
  • FIG. 3 shows a section of the claw bracket 4 with the pivot bearing 15 and with a claw 5 of a known. Wiper blade.
  • the claw 5 has a claw base 8, two arranged on the claw base 8, the long sides of the Wiper strip 6 or back strip 6a leading, Claw walls 9 and on the claw walls 9 arranged, the wiper strip 6 or back bar 6a partially encompassing claw approaches 10,.
  • the Claws 10 are largely parallel to that Krallenground 8. Between the Krallenground 8 and the Claw attachment 10 is the height x of the part of the wiper strip 6 or the back bar 6a shown, the claw 5 is included.
  • the wiper strip 6 or back strip 6a is shown slightly curved in the side view, especially in order to look at a not shown arched Adjust disc.
  • the claw 5 has the claw height a between the claw base 8 and the claw attachment 10.
  • the height x of the claw 5 absorbing part of the wiper strip 6 smaller than that Claw height must be a, so that a longitudinal movement the wiper strip 6 in the claw 5 is guaranteed.
  • the figure 3 removable claw opening dimension c which results from the Distance of the tangent to the wiper strip 6 at the point of contact A with the claw base 8 and the point of contact B the Wiper strip 6 with the claw attachment 10 results.
  • the opening dimension c always is smaller than the claw height a.
  • the Claw height a not much larger than the height x at the Wiper strip 6.
  • the claw opening dimension c is in turn only slightly larger than the wiper height x, which is only a slight curvature allows the wiper strip in side view and with stronger Curvature to clamp the wiper strip 6 in the claw 5 leads.
  • the claw height a is considerably larger than that Wiper strip height x chosen for a greater curvature of the To enable the wiper strip, the wiper strip 6 begins in the Claw 5 to swim. This has poor wiping the disc.
  • FIG Wiper blade Another claw 5 of a known one is shown in FIG Wiper blade shown, in which the 3 described problem is mitigated by the fact that the Claw attachment 10 has a shorter length than the claw base 8 having. But even with such an arrangement it is possible bend of the wiper strip 6 by the claw height a limited.
  • the claw 5 shown in Figure 5 of an inventive Wiper blade differs from the known state of the Technology in that in projection on the disc of the Claw attachment 10 closer to the pivot bearing 15 of the Claw bracket 4 is present as the claw base 8 is the distance d between the inner edge 11b Support surface 8a of the claw base 8 and the outer edge 12a of the claw attachment greater than or equal to zero.
  • the opening dimension c of the claw 5 is between the point of contact A of the wiper strip 6 in the bent state at the claw base 8 and the point of contact B the Wiper strip 6 in the bent state on the claw attachment 10 always larger than the claw height a.
  • the dimension c is therefore always greater than a at d greater than zero. If the claw height a is only slightly larger than the height x that part of the wiper strip 6 picked up by the claw 5 or back bar 6a is executed, it occurs due to described geometries also in the side view in Figure 5 strongly curved wiper strip 6 not for clamping the Wiper strip 6 in the claw 5.
  • the wiper blade with a distance d greater than zero has the Special feature that the wiper strip 6 facing Side of the claw base 8 and the claw bracket 4th facing side of the claw attachment 10 a convex curvature exhibit.
  • Such a curvature creates a better one Adaptability of the wiper strip 6 to the claw 5 enables better leadership and better Longitudinal displacement of the wiper strip 6 in the claw 5 What is guaranteed is a correspondingly good one Wiping result.
  • Figures 7 and 8 show another embodiment of a claw 5 according to the invention, being between the inner edge 11b of the support surface 8a on the claw 8 and the outer Edges 12a of the two claw lugs 13 and 14 each there is a different distance d1 or d2.
  • the Wiper strip 6 not only curved in side view to itself to adapt to a curved disc, but also in Top view curved as shown in Figure 8.
  • Such a Top view curved wiper blades are mostly made up of stylistic reasons used on vehicles around for example an optical adaptation to the neighboring to reach the curved side edge of the vehicle window. Also With such wiper blades, it is necessary to wipe strip 6 as accurate as possible and a good one To ensure longitudinal movement.
  • the distance is d1 of the claw attachment 13 on the claw side, on the Outside of the wiper strip bend is smaller than that Distance d2 of the claw attachment 14 on the other Claw side that on the inside of the wiper bend lies. It is precisely through such an arrangement that that the curved in plan view and possibly in side view curved wiper strip 6 has good longitudinal displaceability has, and not due to the arrangement of the Claw attachments 13 and 14 in curved and / or curved Condition comes to a clamp.
  • FIGS. 7 and 8 are advantageous Claws also for use from a top view curved and / or curved in side view wiper blades suitable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Cleaning In General (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Seal Device For Vehicle (AREA)

Description

Die Erfindung betrifft ein Wischblatt zum Reinigen einer insbesondere gewölbten Scheibe an einem Fahrzeug mit einem Traggestell mit wenigstens zwei Krallen zum Halten und Führen einer gummiartigen Wischleiste, wobei das Traggestell wenigstens einen Krallenbügel mit einer Kralle an wenigstens einem Bügelende aufweist und der Krallenbügel in einem Abstand von der Kralle über ein Schwenklager mit einem Wischarm verbindbar oder mit einem weiteren Bügel des Traggestells verbunden ist, wobei die Kralle im Krallengrund eine im Betriebszustand des Scheibenwischers auf die Oberseite der Wischleiste drückende Auflagefläche aufweist, die in Bügellängsrichtung durch einen äußeren Rand und einen inneren Rand begrenzt ist und eine maximale Länge besizt, und wobei von dem Krallengrund in Richtung auf die zu wischende Scheibe zwei entlang den gegenüberliegenden Längsseiten der Wischleiste verlaufende Krallenwandungen ausgehen, die in Krallenansätze übergehen, welche die zu der Wischleiste gehörende Rückenleiste untergreifen oder in seitliche Längsnuten der Rückenleiste eingreifen, wobei die Krallenansätze in Bügellängsrichtung jeweils durch einen äußeren Rand und einen inneren Rand begrenzt sind.The invention relates to a wiper blade for cleaning a in particular curved disc on a vehicle with a Support frame with at least two claws to hold and Run a rubber-like wiper strip, the support frame at least one claw bracket with a claw on at least has a temple end and the claw bracket in one Distance from the claw via a swivel bearing with a Wiper arm connectable or with another bracket of the Support frame is connected, the claw in the claw base one in the operating state of the wiper on the Has pressing surface on top of the wiper strip, that in the longitudinal direction of the temple by an outer edge and a inner edge is limited and has a maximum length, and being from the claw bottom towards the wiping two pane along the opposite Claw walls running along the length of the wiper strip going out, which change into claw approaches, which the to the Reach in under the wiper strip or in lateral longitudinal grooves of the back bar engage, the Claw attachments in the longitudinal direction of the temple each by one outer edge and an inner edge are limited.

Ein Wischblatt mit einer solchen Kralle ist seit langem, beispielsweise aus der DE-B-1,197,338, bekannt und findet in nahezu jeder heute verwendeten Scheibenwischvorrichtung zum Reinigen einer Scheibe an einem Kraftfahrzeug Verwendung. Die Wischleiste eines solchen Wischblattes ist dabei in den Krallen zumindest bedingt in Längsrichtung so verschiebbar angeordnet, dass eine Anpassung der elastischen Wischleiste an die Oberflächenform der zu wischenden Scheibe weitgehend ermöglicht wird. Die an einem Krallenbügel angeordneten Krallen dienen dabei zur Führung der Wischleiste entlang der zu wischenden Scheibe und zur Übertragung der erforderlichen Andruckkraft auf die Wischleiste, wobei die Scheibe auch eine gewölbte Form aufweisen kann. Dabei ist bei der Gestaltung von Krallen zu berücksichtigen, dass diese die Wischleiste bzw. deren Rückenleiste möglichst eng und präzise führen. Trotzdem muss die Wischleiste in der Kralle genügend Spiel haben, um eine Längsverschieblichkeit der Wischleiste in der Kralle zu ermöglichen.A wiper blade with such a claw has long been for example from DE-B-1,197,338, known and found in almost every windshield wiper device used today for Cleaning a window on a motor vehicle use. The wiper strip of such a wiper blade is in the Claws can be moved longitudinally at least to a limited extent arranged that an adjustment of the elastic wiper strip largely to the surface shape of the window to be wiped is made possible. The arranged on a claw bracket Claws are used to guide the wiper strip along the to wipe the window and to transfer the necessary Pressing force on the wiper strip, the washer also can have a curved shape. It is with the Designing claws to take into account that these are the Wiper strip or its back strip as narrow and lead precisely. Nevertheless, the wiper strip must be in the claw have enough play to allow for longitudinal displacement Allow wiper strip in the claw.

Solche bekannten Wischblätter weisen allerdings den Nachteil auf, dass sie für die Verwendung von zumindest abschnittsweise gewölbten Scheiben schlecht geeignet sind.However, such known wiper blades have the disadvantage on that for the use of at least curved sections in sections are poorly suited.

Der Zielkonflikt, einerseits eine enge und genaue Führung der Wischleiste in -der Kralle zu gewährleisten und andererseits beim Wischen einer gewölbten Scheibe in der Kralle genügend Spiel für eine freie Längsverschiebbarkeit der Wischleiste zu ermöglichen, kann mit den bekannten Wischblättern nicht gelöst werden. Bei der Verwendung von Krallen bekannter Wischblätter für, insbesondere an den Scheibenrändern, stark gewölbte Scheiben klemmt die Wischleiste entweder aufgrund ihrer Krümmung oder sie schwimmt aufgrund des zu großen Spiels in der Kralle, so dass eine optimale Führung der Wischleiste nicht gewährleistet ist. Die Folge ist ein unbefriedigendes Wischergebnis.The conflict of goals, on the one hand, close and precise management to ensure the wiper strip in the claw and on the other hand when wiping a curved disc in the Claw enough play for free longitudinal movement The wiper strip can be made with the known Wiper blades cannot be loosened. When using Claws of known wiper blades for, especially on the Disc edges, strongly curved discs clamps the Wiper strip either because of its curvature or because of it swims in the claw because of the too big game, so that optimal guidance of the wiper strip is not is guaranteed. The result is an unsatisfactory one Wiping result.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, ein Wischblatt mit Krallen zur zumindest teilweisen Aufnahme einer gummiartigen Wischleiste zu schaffen, bei denen eine gute Führung und eine gute Längsverschieblichkeit der gummiartigen Wischleiste in den Krallen auch bei gewölbter bzw. abschnittsweise gewölbter Scheibe gewährleistet ist.The present invention is therefore based on the object based on a wiper blade with claws at least partial inclusion of a rubber-like wiper strip create good leadership and good Longitudinal displacement of the rubber-like wiper strip in the Claws also in the case of arched or arched sections Washer is guaranteed.

Zur Lösung der Aufgabe wird ein Wischblatt der eingangs beschriebenen Art vorgeschlagen, bei dem die Krallenansätze mindestens einer Kralle des Wischblattes in Bügellängsrichtung in Relation zu der Auflagefläche im Krallengrund derart in Richtung zu dem Schwenklager des Krallenbügels versetzt sind, dass die äußeren Ränder der Krallenansätze innerhalb eines Bereiches angeordnet sind, der sich von einschließlich der Halfte der maximalen Länge der Auflagefläche bis in den Abstand zwischen dem inneren Rand der Auflagefläche und dem Schwenkla-ger des Krallenbügels erstreckt. Im Sinne der Erfindung ist ein äußerer Rand der Auflagefläche im Krallengrund oder ein äußerer Rand eines Krallenansatzes immer derjenige Rand, der in Bügellängsrichtung nach außen weist. Dementsprechend ist ein innerer Rand der Auflagefläche im Krallengrund oder ein innerer Rand eines Krallenansatzes immer derjenige Rand, der in Bügellängsrichtung nach innen weist.To solve the problem, a wiper blade is used at the beginning described type proposed, in which the claw approaches at least one claw of the wiper blade in Temple longitudinal direction in relation to the contact surface in the Claw base so in the direction of the pivot bearing of the Claw bracket are offset that the outer edges of the Claw attachments are arranged within an area, which is from including half the maximum length the contact surface up to the distance between the inner Edge of the support surface and the swivel bearing of the Claw bracket extends. In the sense of the invention is a outer edge of the contact surface in the claw base or a outer edge of a claw attachment always the edge that points outwards in the longitudinal direction of the temple. Is accordingly an inner edge of the contact surface in the claw base or a inner edge of a claw attachment always the edge that points inwards in the longitudinal direction of the temple.

Alternativ kann dieser Sachverhalt auch so ausgedrückt werden, dass bei wenigstens einer Kralle des Wischblattes die auf die Scheibe projizierten Krallenansätze in Relation zu der auf die Scheibe projizierte Auflagefläche derart in Richtung zu dem Schwenklager des Krallenbügels versetzt sind, dass die auf die Scheibe projizierten Krallenansätze von der auf die Scheibe projizierten Auflagefläche in Längsrichtung des Krallenbügels nicht oder höchstens von der dem Schwenklager zugewandten Hälfte der auf die Scheibe projizierten Auflagefläche überlappt sind.Alternatively, this fact can also be expressed in this way be that with at least one claw of the wiper blade the claw projections projected onto the disc in relation to the contact surface projected onto the disc in Direction to the swivel bearing of the claw bracket are that the claw projections projected onto the disc from the contact surface projected onto the disc in Longitudinal direction of the claw bracket not or at most from the half of the pivot bearing facing the disc projected contact surface are overlapped.

Die erfindungsgemäß gestaltete Kralle kann bei unterschiedlichsten Traggestell- oder Bügelkonstruktionen verwendet werden. So kann ein erfindungsgemäß ausgebildeter Krallenbügel beispielsweise ein direkt an dem Wischarm anlenkbarer Hauptbügel mit jeweils einer Kralle an jedem Ende oder ein an einem übergeordneten Bügel angelenkter Krallenbügel mit jeweils einer Kralle an einem Ende oder ein Bügel mit einer Kralle an nur einem Ende und einem Krallenbügel an seinem anderen Ende sein. Ebenso kann das Traggestell eines Wischblattes zwei Bügel aufweisen, die jeweils an einem Ende über ein Gelenk miteinander verbunden sind und wenigstens einer dieser Bügel an seinem anderen Ende eine erfindungsgemäß ausgebildete Kralle aufweist. Die Erfindung soll weiterhin Wischblätter mit solchen Traggestell- oder Bügelkonstruktionen umfassen, bei denen die Kralle bzw. die Krallen nicht an der Unterseite des Bügels angeordnet, sondern beispielsweise seitlich am bzw. seitlich vom Bügel angeordnet oder ausgebildet sind.The claw designed according to the invention can various supporting frame or bracket constructions be used. A person trained in accordance with the invention can thus Claw bracket, for example, directly on the wiper arm articulated main bar with one claw on each End or one hinged to a parent bracket Claw bracket with one claw at one end or one Bracket with a claw on only one end and one Claw bracket at its other end. It can also Carrying frame of a wiper blade have two brackets that each connected at one end via a joint and at least one of these brackets on its other End has a claw designed according to the invention. The Invention is also intended to wiper blades with such Support frame or bracket structures include where the claw or claws are not on the underside of the Arranged bracket, but for example laterally on or are arranged or formed laterally from the bracket.

Weiterhin soll klargestellt sein, dass erfindungsgemäße Wischblätter für alle möglichen Scheiben, wie Windschutzscheiben, Heckscheiben, Seitenscheiben, (allgemein Sichtscheiben), Scheinwerferscheiben, Heckleuchtenscheiben, Rückstrahler und dergleichen, an unterschiedlichen Fahrzeugen, insbesondere Kraftfahrzeugen, verwendet werden können.Furthermore, it should be clarified that the invention Wiper blades for all possible panes, such as Windshields, rear windows, side windows, (general Viewing panes), headlight panes, rear lamp panes, Reflectors and the like, at different Vehicles, especially motor vehicles, are used can.

Das erfindungsgemäße Wischblatt hat dabei den Vorteil, dass auch bei stärker gewölbten Scheiben eine gegenüber bekannten Wischblättern bessere Anpassung und Führung der gummiartigen Wischleiste an der zu wischenden Scheibe gewährleistet ist. Ein Verklemmen der Wischleiste in der Kralle, wie es nach dem Stand der Technik bei stärker gewölbten Scheiben regelmäßig der Fall ist, kann erfindungsgemäß nicht stattfinden.The wiper blade according to the invention has the advantage that even in the case of strongly curved panes, one compared to known ones Wiper blades better adjust and guide the rubbery Wiper strip on the window to be wiped is guaranteed. A jamming of the wiper strip in the claw as it does after the state of the art for more curved panes According to the invention, this is regularly the case occur.

Eine optimale Gestaltung des Wischblattes ergibt sich durch eine Weiterbildung der Erfindung, wonach zwischen dem inneren Rand der im Krallengrund vorgesehenen Auflagefläche und den äußeren Rändern der Krallenansätze ein Abstand d, mit d gleich oder größer Null vorhanden ist.An optimal design of the wiper blade results from a development of the invention, according to which inner edge of the contact surface provided in the claw base and the outer edges of the claw attachments a distance d, where d is equal to or greater than zero.

Der für die Wischleiste relevante Querschnitt berechnet sich aus der Breite b der Kralle und dem für den von der Kralle aufgenommenen Teil der Wischleiste relevanten Öffnungsmaß c der Kralle. Das Öffnungsmaß c bestimmt sich dabei als Hypothenuse des Dreiecks mit den Katheten des Abstandes d und der Krallenhöhe a. Daraus ergibt sich, dass wenn d größer oder gleich Null ist, das Öffnungsmaß c größer oder gleich der Krallenhöhe a ist. Demzufolge ist also gewährleistet, dass der für den von der Kralle aufgenommenen Teil der Wischleiste relevante Querschnitt der Kralle erfindungsgemäß immer größer oder gleich der Krallenhöhe a ist, insbesondere auch bei gekrümmten Scheiben. Durch die nötige Freiheit der Wischleiste in der Kralle ist eine Längsverschieblichkeit der Wischleiste stets möglich und ein Verklemmen der Wischleiste findet nicht statt, wodurch ein entsprechend gutes Wischergebnis erzielt wird.The cross-section relevant for the wiper strip is calculated from the width b of the claw and that of the claw part of the wiper strip relevant opening dimension c the claw. The opening dimension c is determined as Hypotenuse of the triangle with distance catheters d and the claw height a. It follows that if d is greater than or equal to zero, the opening dimension c is greater than or is equal to the claw height a. Hence, is ensures that the one picked up by the claw Part of the wiper strip relevant cross-section of the claw according to the invention always greater than or equal to the claw height a is, especially with curved panes. Through the necessary freedom of the wiper strip in the claw is one Longitudinal displacement of the wiper strip is always possible and one The wiper strip does not jam, causing a correspondingly good wiping result is achieved.

Nach einer vorteilhaften Ausgestaltung der Erfindung sollen in Seitenansicht des Wischblattes die beiden Krallenansätze miteinander fluchten bzw. soll der Abstand d bei beiden Krallenansätzen gleich groß sein. Dadurch wird eine gleichmäßige Führung und Kraftübertragung der Wischleiste an der Scheibe ermöglicht.According to an advantageous embodiment of the invention in side view of the wiper blade, the two claw attachments the distance d should be in alignment with each other Claws should be the same size. This will make one uniform guidance and power transmission of the wiper strip the disc allows.

In Ausgestaltung der Erfindung ist in Bügellängsrichtung der eine Krallenansatz in Relation zu dem anderen Krallenansatz versetzt angeordnet bzw. ist der Abstand d1 des einen Krallenansatzes verschieden dem Abstand d2 des anderen Krallenansatzes. Eine solche Asymmetrie der Kralle kann, insbesondere bei entsprechenden Scheiben- und/oder Wischblattgeometrien, vorteilhaft sein.In an embodiment of the invention is in the longitudinal direction of the temple one claw attachment in relation to the other claw attachment staggered or the distance d1 of one Claw set different from the distance d2 of the other Claws approach. Such an asymmetry of the claw can especially with appropriate disc and / or Wiper blade geometries may be advantageous.

Eine Weiterbildung der Erfindung sieht vor, dass die Wischleiste in Draufsicht gebogen ist und dass der Abstand d1 des einen Krallenansatzes auf der Krallenseite, die auf der Außenseite der Wischleistenbiegung liegt, kleiner ist als der Abstand d2 auf der anderen Krallenseite, die auf der Innenseite der Wischleistenbiegung liegt. Eine solche Weiterbildung der Erfindung hat insbesondere den Vorteil, dass nicht nur eine optimale Anpassung der Wischleiste an eine stark gewölbte Scheibe gewährleistet wird, sondern dass zudem bei der Verwendung eines in Draufsicht gebogenen Scheibenwischers die Kralle so ausgebildet ist, dass die Wischleiste in ihrer Längsverschieblichkeit nicht durch die Kralle behindert wird. In Draufsicht gebogene Scheibenwischer finden überwiegend aus stilistischen und ästhetischen Gründen bei Kraftfahrzeugen Verwendung.A further development of the invention provides that the Wiper strip is curved in top view and that the distance d1 of the one claw attachment on the claw side that on the outside of the wiper strip bend is smaller than the distance d2 on the other claw side, that on the Is inside the wiper strip bend. Such Further development of the invention has the particular advantage that not only an optimal adjustment of the wiper strip a strongly curved disc is guaranteed, but that also when using a curved top view Wiper the claw is designed so that the Wiper strip in its longitudinal movement not by Claw is hindered. Curved in top view Windshield wipers are predominantly stylistic and aesthetic reasons in motor vehicles use.

Nach einer anderen Ausgestaltung der Erfindung sind die Abstände d1 und d2 abhängig von dem Grad der in Draufsicht gebogenen Wischleiste. Bei zum Beispiel nur gering gebogenen Wischleisten ist der Unterschied zwischen den Abständen d1 und d2 kleiner, als bei insbesondere sehr stark gebogenen Wischleisten. Damit kann eine optimale Längsverschieblichkeit der Wischleiste auch bei in Draufsicht gebogenen Wischleisten gewährleistet werden.According to another embodiment of the invention Distances d1 and d2 depending on the degree of the top view curved wiper strip. For example, only slightly curved Wiper strips is the difference between the distances d1 and d2 smaller than in the case of a particularly strongly curved one Wiper strip. This can be an optimal Longitudinal displacement of the wiper strip also in Top view curved wiper strips can be guaranteed.

Eine Variante der Erfindung sieht vor, dass die der Wischleiste zugewandte Seite des Krallengrundes in Bezug auf die Krallenansätze und/oder die Krallenansätze in Bezug auf den Krallengrund konvex gewölbt ist bzw. gewölbt sind. Durch solche Wölbungen wird ermöglicht, dass die Längsverschieblichkeit der Wischleiste, insbesondere bei Scheiben mit stark unterschiedlicher Wölbung, verbessert wird.A variant of the invention provides that the Wiper strip facing side of the claw base with respect the claw approaches and / or the claw approaches in relation to the base of the claw is convexly or are arched. By such bulges will allow the Longitudinal displaceability of the wiper strip, especially at Discs with very different curvatures, improved becomes.

Eine Weiterbildung der Erfindung sieht vor, dass die wenigstens eine Kralle an dem Krallenbügel eine Endkralle des Wischblattes ist. Eine Endkralle ist diejenige Kralle an einem Wischblatt, welche dem äußeren Scheibenrand am nächsten liegt. Insbesondere in diesem Bereich sind Scheiben von Kraftfahrzeugen meist stärker gewölbt als im mittleren Scheibenbereich. Deshalb ist es gerade dort sinnvoll, Krallen einzusetzen, die eine optimale Führung und Kraftübertragung der Wischleiste an den, insbesondere stark gewölbten, Scheibenabschnitten gewährleisten.A further development of the invention provides that the at least one claw on the claw bracket an end claw of the wiper blade. An end claw is the claw on a wiper blade, which on the outer edge of the window next lies. In this area in particular there are disks of motor vehicles usually more domed than in the middle Disk area. That's why it makes sense there Use claws that provide optimal guidance and Power transmission of the wiper strip to the, especially strong ensure arched, disc sections.

Weitere vorteilhafte Ausgestaltungen und Einzelheiten sind der folgenden Beschreibung zu entnehmen, in der die Erfindung anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben und erläutert ist. Es zeigen:

Figur 1
einen Wischhebel einer Scheibenwischvorrichtung in Seitenansicht,
Figur 2
einen Krallenbügel eines bekannten Wischblattes in Seitenansicht,
Figur 3 und 4
zwei verschiedene Ausführungen einer Kralle eines bekannten Wischblattes in Seitenansicht,
Figur 5, 6 und 7
drei verschiedene Krallen eines erfindungsgemäßen Wischblattes in Seitenansicht und
Figur 8
die in Figur 7 gezeigte Kralle in Draufsicht.
Further advantageous configurations and details can be found in the following description, in which the invention is described and explained in more detail with reference to the exemplary embodiment shown in the drawing. Show it:
Figure 1
a wiper lever of a windshield wiper device in side view,
Figure 2
a claw bracket of a known wiper blade in side view,
Figures 3 and 4
two different versions of a claw of a known wiper blade in side view,
Figure 5, 6 and 7
three different claws of a wiper blade according to the invention in side view and
Figure 8
the claw shown in Figure 7 in plan view.

Die Figur 1 zeigt beispielhaft einen Wischhebel 1 einer bekannten Scheibenwischvorrichtung zum Reinigen einer Scheibe an einem Kraftfahrzeug mit einem Hauptbügel 2, an dem symmetrisch zwei Bügel 3 angeordnet sind, welche ihrerseits mit Krallenbügeln 4 verbunden sind. Die Krallenbügel 4 sind dabei mittels den Schwenklagern 15 gelenkig bezüglich den Bügeln 3 gelagert. An ihren gegenüberliegenden Enden weisen die Krallenbügel 4 auf ihrer dem Hauptbügel 2 abgewandten Seite je eine Kralle 5 auf. Die Krallen 5 nehmen dabei die zu einer gummiartigen Wischleiste 6 gehörende Rückenleiste 6a auf, die insbesondere durch nicht dargestellte Federschienen in Längsnuten der Rückenleiste 6a verstärkbar ist.FIG. 1 shows an example of a wiper lever 1 known windshield wiper device for cleaning a Washer on a motor vehicle with a main bracket 2 which are symmetrically arranged two brackets 3, which are in turn connected to claw brackets 4. The Claw bracket 4 are by means of the pivot bearings 15 articulated with respect to the brackets 3. At her opposite ends have the claw brackets 4 on their a claw 5 each on the side facing away from the main bracket 2. The Claws 5 take them to a rubber-like wiper strip 6 belonging back bar 6a, in particular by Spring rails, not shown, in the longitudinal grooves of the Back bar 6a can be reinforced.

Abweichend von dieser Art eines Wischblattes könnte im Rahmen der Erfindung auch der Hauptbügel 2 direkt als Krallenbügel ausgebildet sein, indem an seinen gegenüberliegenden Enden jeweils eine Kralle vorgesehen ist.Deviating from this type of wiper blade could Within the scope of the invention, the main bracket 2 also directly as Claw bracket can be formed by on his opposite ends each have a claw is provided.

Die Figur 2 zeigt einen Krallenbügel 4 mit einem Schwenklager 15 in einem Abstand D von der wenigstens einen Kralle 5, wobei an den Enden des Krallenbügels 4 zwei bekannte Krallen 5 angeordnet sind. Diese Krallen 5 nehmen dabei die zu der Wischleiste 6 gehörende Rückenleiste 6a auf, die an ihrer dem Krallenbügel 4 abgewandten Seite eine Wischkante 7 aufweist.Figure 2 shows a claw bracket 4 with a Pivot bearing 15 at a distance D from the at least one Claw 5, two at the ends of the claw bracket 4 known claws 5 are arranged. Take these claws 5 the back bar 6a belonging to the wiper bar 6 on that on its side facing away from the claw bracket 4 Wiping edge 7 has.

Die Figur 3 zeigt einen Abschnitt des Krallenbügels 4 mit dem Schwenklager 15 und mit einer Kralle 5 eines bekannten. Wischblattes. Die Kralle 5 weist dabei einen Krallengrund 8, zwei an dem Krallengrund 8 angeordnete, die Längsseiten der Wischleiste 6 bzw Rückenleiste 6a führenden, Krallenwandungen 9 und an den Krallenwandungen 9 angeordnete, die Wischleiste 6 bzw. Rückenleiste 6a teilweise umgreifende Krallenansätzen 10, auf. Die Krallenansätze 10 sind dabei weitgehend parallel zu dem Krallengrund 8. Zwischen dem Krallengrund 8 und dem Krallenansatz 10 ist die Höhe x des Teiles der Wischleiste 6 bzw. deren Rückenleiste 6a gezeigt, der von der Kralle 5 aufgenommen ist. Die Wischleiste 6 bzw. Rückenleiste 6a ist dabei in der Seitenansicht leicht gekrümmt dargestellt, insbesondere um sich an eine nicht dargestellte gewölbte Scheibe anzupassen. Die Kralle 5 weist die Krallenhöhe a zwischen dem Krallengrund 8 und dem Krallenansatz 10 auf. Grundsätzlich gilt, dass die Höhe x des von der Kralle 5 aufzunehmenden Teiles der Wischleiste 6 kleiner als die Krallenhöhe a sein muss, damit eine Längsverschieblichkeit der Wischleiste 6 in der Kralle 5 gewährleistet ist. Allerdings ist zu berücksichtigen, dass bei der Anpassung der Wischleiste 6 an gewolbte Scheiben nicht nur die Krallenhöhe a für die Längsverschieblichkeit der Wischleiste 6-alleine entscheidend ist, sondern auch das Figur 3 entnehmbare Krallenöffnungsmaß c, welches sich aus dem Abstand der Tangente an der Wischleiste 6 im Berührungspunkt A mit dem Krallengrund 8 und dem Berührungspunkt B der Wischleiste 6 mit dem Krallenansatz 10 ergibt. Dabei gilt gemäß dem Stand der Technik, dass das Öffnungsmaß c stets kleiner als die Krallenhöhe a ist.FIG. 3 shows a section of the claw bracket 4 with the pivot bearing 15 and with a claw 5 of a known. Wiper blade. The claw 5 has a claw base 8, two arranged on the claw base 8, the long sides of the Wiper strip 6 or back strip 6a leading, Claw walls 9 and on the claw walls 9 arranged, the wiper strip 6 or back bar 6a partially encompassing claw approaches 10,. The Claws 10 are largely parallel to that Krallengrund 8. Between the Krallengrund 8 and the Claw attachment 10 is the height x of the part of the wiper strip 6 or the back bar 6a shown, the claw 5 is included. The wiper strip 6 or back strip 6a is shown slightly curved in the side view, especially in order to look at a not shown arched Adjust disc. The claw 5 has the claw height a between the claw base 8 and the claw attachment 10. Basically, the height x of the claw 5 absorbing part of the wiper strip 6 smaller than that Claw height must be a, so that a longitudinal movement the wiper strip 6 in the claw 5 is guaranteed. However, it should be borne in mind that when adapting the wiper strip 6 not only on curved windows Claw height a for the longitudinal movement of the wiper strip 6 alone is decisive, but also the figure 3 removable claw opening dimension c, which results from the Distance of the tangent to the wiper strip 6 at the point of contact A with the claw base 8 and the point of contact B the Wiper strip 6 with the claw attachment 10 results. The following applies according to the state of the art that the opening dimension c always is smaller than the claw height a.

Um eine optimale Führung und Kraftübertragung der Wischleiste 6 an die Scheibe zu gewährleisten, darf die Krallenhöhe a nicht viel größer als die Höhe x an der Wischleiste 6 sein. Dies hat allerdings zur Folge, dass dann das Krallenöffnungsmaß c wiederum nur geringfügig größer ist als die Wischleistenhöhe x, was nur eine geringe Krümmung der Wischleiste in Seitenansicht zulässt und bei stärkerer Krümmung zu einem Klemmen der Wischleiste 6 in der Kralle 5 führt. Wird die Krallenhöhe a erheblich größer als die Wischleistenhöhe x gewählt um eine stärkere Krümmung der Wischleiste zu ermöglichen, beginnt die Wischleiste 6 in der Kralle 5 zu schwimmen. Dies hat eine mangelhafte Wischung der Scheibe zur Folge.For optimal guidance and power transmission of the To ensure wiper strip 6 on the window, the Claw height a not much larger than the height x at the Wiper strip 6. However, this has the consequence that then the claw opening dimension c is in turn only slightly larger than the wiper height x, which is only a slight curvature allows the wiper strip in side view and with stronger Curvature to clamp the wiper strip 6 in the claw 5 leads. If the claw height a is considerably larger than that Wiper strip height x chosen for a greater curvature of the To enable the wiper strip, the wiper strip 6 begins in the Claw 5 to swim. This has poor wiping the disc.

In Figur 4 ist eine andere Kralle 5 eines bekannten Wischblattes dargestellt, bei welchem die zu Figur 3 geschilderte Problematik dadurch abgemildert wird, dass der Krallenansatz 10 eine geringere Länge als der Krallengrund 8 aufweist. Aber auch bei einer solchen Anordnung ist die mögliche Biegung der Wischleiste 6 durch die Krallenhöhe a begrenzt.Another claw 5 of a known one is shown in FIG Wiper blade shown, in which the 3 described problem is mitigated by the fact that the Claw attachment 10 has a shorter length than the claw base 8 having. But even with such an arrangement it is possible bend of the wiper strip 6 by the claw height a limited.

Die in Figur 5 gezeigte Kralle 5 eines erfindungsgemäßen Wischblattes unterscheidet sich von dem bekannten Stand der Technik dadurch, dass in Projektion auf die Scheibe der Krallenansatz 10 näher an dem Schwenklager 15 des Krallenbügels 4 vorhanden ist, als der Krallengrund 8. Dabei ist der Abstand d zwischen dem inneren Rand 11b der Auflagefläche 8a des Krallengrundes 8 und dem äußeren Rand 12a des Krallenansatzes größer oder gleich Null. Erfindungsgemäß ist das Öffnungsmaß c der Kralle 5 zwischen dem Berührungspunkt A der Wischleiste 6 in gebogenem Zustand an dem Krallengrund 8 und dem Berührungspunkt B der Wischleiste 6 im gebogenen Zustand an dem Krallenansatz 10 stets größer als die Krallenhöhe a. Wie aus Figur 5 entnehmbar, erhält man das rechtwinklige Dreieck mit den beiden Katheten a und d und dem Maß c als Hypothenuse.The claw 5 shown in Figure 5 of an inventive Wiper blade differs from the known state of the Technology in that in projection on the disc of the Claw attachment 10 closer to the pivot bearing 15 of the Claw bracket 4 is present as the claw base 8 is the distance d between the inner edge 11b Support surface 8a of the claw base 8 and the outer edge 12a of the claw attachment greater than or equal to zero. According to the opening dimension c of the claw 5 is between the point of contact A of the wiper strip 6 in the bent state at the claw base 8 and the point of contact B the Wiper strip 6 in the bent state on the claw attachment 10 always larger than the claw height a. As from Figure 5 removable, you get the right triangle with the two cathets a and d and the dimension c as hypotenuse.

Damit berechnet sich c folgemdermaßen: c = d 2+ a 2 With this, c is calculated as follows: c = d 2 + a 2

Damit ist das Maß c bei d größer Null stets größer a. Wenn die Krallenhöhe a auch nur geringfügig größer als die Höhe x des von der Kralle 5 aufgenommenen Teiles der Wischleiste 6 bzw. Rückenleiste 6a ausgeführt wird, kommt es aufgrund der beschriebenen Geometrien auch bei der in Seitenansicht in Figur 5 stark gekrümmten Wischleiste 6 nicht zum Klemmen der Wischeleiste 6 in der Kralle 5.The dimension c is therefore always greater than a at d greater than zero. If the claw height a is only slightly larger than the height x that part of the wiper strip 6 picked up by the claw 5 or back bar 6a is executed, it occurs due to described geometries also in the side view in Figure 5 strongly curved wiper strip 6 not for clamping the Wiper strip 6 in the claw 5.

Da allerdings die Höhe x der Wischleiste 6 stets kleiner als das Krallenhöhe a sein muss, um bei nicht gekrümmten Zustand der Wischleiste 6 eine Längsverschieblichkeit der Wischleiste 6 zu gewahrleisten, gilt erst recht, dass diese Längsverschieblichkeit in gekrümmten Zustand stets gegeben ist, da das Krallenöffnungsmaß c (Hypothenuse) stets größer oder gleich als die Krallenhöhe a (Kathete) ist, wenn der Abstand d (Kathete) großer oder gleich Null ist. Ein Klemmen der Wischleiste 6 in der Kralle 5 ist damit erfindungsgemäß, insbesondere auch bei stark gewölbten Scheiben, nicht mehr möglich.However, since the height x of the wiper strip 6 is always less than the claw height must be a in order not to be curved the wiper strip 6 has a longitudinal displacement To ensure wiper strip 6 is even more important that this Longitudinal flexibility in the curved state is always given is because the claw opening dimension c (hypotenuse) is always larger or is equal to the claw height a (cathete) if the Distance d (cathete) is greater than or equal to zero. A pinch the wiper strip 6 in the claw 5 is thus according to the invention, especially with strongly curved panes, no more possible.

Die in Figur 6 gezeigte Kralle 5 eines erfindungsgemäßen Wischblattes mit einem Abstand d größer Null weist die Besonderheit auf, dass die der Wischleiste 6 zugewandte Seite des Krallengrundes 8 und die dem Krallenbügel 4 zugewandte Seite des Krallenansatzes 10 eine konvexe Wölbung aufweisen. Durch eine solche Wölbung wird eine bessere Anpassungsfähigkeit der Wischleiste 6 an die Kralle 5 ermöglicht, wodurch eine bessere Führung und bessere Längsverschieblichkeit der Wischleiste 6 in der Kralle 5 gewährleistet wird, was ein entsptrechend gutes Wischergebnis zur Folge hat.The claw 5 shown in Figure 6 of an inventive The wiper blade with a distance d greater than zero has the Special feature that the wiper strip 6 facing Side of the claw base 8 and the claw bracket 4th facing side of the claw attachment 10 a convex curvature exhibit. Such a curvature creates a better one Adaptability of the wiper strip 6 to the claw 5 enables better leadership and better Longitudinal displacement of the wiper strip 6 in the claw 5 What is guaranteed is a correspondingly good one Wiping result.

Die Figuren 7 und 8 zeigen eine andere Ausführungsform einer erfindungsgemäßen Kralle 5, wobei zwischen dem inneren Rand 11b der Auflagefläche 8a am Krallengrung 8 und den äußeren Rändern 12a der beiden Krallenansätze 13 und 14 jeweils ein unterschiedlicher Abstand d1 bzw. d2 besteht. Dabei ist die Wischleiste 6 nicht nur in Seitenansicht gekrümmt, um sich an eine gewölbte Scheibe anzupassen, sondern auch in Draufsicht gebogen, wie in Figur 8 gezeigt. Solche in Draufsicht gebogenen Wischblätter werden überwiegend aus stilistischen Gründen an Fahrzeugen verwendet um beispielsweise eine optisch Anpassung an den benachbarten, gebogenen Seitenrand der Fahrzeugscheibe zu erreichen. Auch bei solchen Wischblättern ist es nötig, die Wischleiste 6 möglichst genau zu führen und eine gute Längsverschieblichkeit zu gewährleisten.Figures 7 and 8 show another embodiment of a claw 5 according to the invention, being between the inner edge 11b of the support surface 8a on the claw 8 and the outer Edges 12a of the two claw lugs 13 and 14 each there is a different distance d1 or d2. Here is the Wiper strip 6 not only curved in side view to itself to adapt to a curved disc, but also in Top view curved as shown in Figure 8. Such a Top view curved wiper blades are mostly made up of stylistic reasons used on vehicles around for example an optical adaptation to the neighboring to reach the curved side edge of the vehicle window. Also With such wiper blades, it is necessary to wipe strip 6 as accurate as possible and a good one To ensure longitudinal movement.

Wie in Figur 8 deutlich zu erkennen ist, ist der Abstand d1 des Krallenansatzes 13 auf der Krallenseite, die auf der Außenseite der Wischleistenbiegung liegt, kleiner als der Abstand d2 des Krallenansatzes 14 auf der anderen Krallenseite, die auf der Innenseite der Wischleistenbiegung liegt. Gerade durch eine solche Anordnung wird erreicht, dass die in Draufsicht gebogene und ggf. in Seitenansicht gekrümmte Wischleiste 6 eine gute Längsverschieblichkeit aufweist, und nicht aufgrund der Anordnung der Krallenansätze 13 und 14 in gebogenem und/oder gekrümmten Zustand zum Klemmen kommt. As can be clearly seen in FIG. 8, the distance is d1 of the claw attachment 13 on the claw side, on the Outside of the wiper strip bend is smaller than that Distance d2 of the claw attachment 14 on the other Claw side that on the inside of the wiper bend lies. It is precisely through such an arrangement that that the curved in plan view and possibly in side view curved wiper strip 6 has good longitudinal displaceability has, and not due to the arrangement of the Claw attachments 13 and 14 in curved and / or curved Condition comes to a clamp.

Vorteilhafterweise sind die in Figur 7 und 8 gezeigten Krallen auch für eine Verwendung von nicht in Draufsicht gebogenen und/oder in Seitenansicht gekrümmten Wischblättern geeignet.The ones shown in FIGS. 7 and 8 are advantageous Claws also for use from a top view curved and / or curved in side view wiper blades suitable.

Alle in der Beschreibung, den nachfolgenden Ansprüchen und der Zeichnung dargestellten Merkmale können, sowohl einzeln, als auch in beliebiger Kombination miteinander, erfindungswesentlich sein.All in the description, the following claims and Features shown in the drawing can, both individually, as well as in any combination with each other, be essential to the invention.

Claims (8)

  1. A wiper blade for cleaning in particular a curved screen on a vehicle, having a supporting frame with at least two claws (5) for holding and guiding a rubber-type wiper squeegee (6), wherein the supporting frame comprises at least one claw yoke (4) with a claw (5) at at least one yoke end and the claw yoke (4) may be connected with a wiper arm (1) or is connected with a further yoke (2, 3) of the supporting frame at a distance (D) from the claw (5) via a pivot bearing (15), wherein the claw (5) comprises in the claw base (8) a bearing surface (8a) pressing on the top of the wiper squeegee (6) when the screen wiper is in the operating state, which bearing surface (8a) is defined in the longitudinal direction of the yoke by an outer edge (11a) and an inner edge (11b) and has a maximum length (L), and wherein two claw walls (9) extending over the opposing longitudinal sides of the wiper squeegee (6) extend from the claw base (8) in the direction of the screen to be wiped, which claw walls (9) develop into claw lugs (10, 13, 14), which engage under the back strip (6a) belonging to the wiper squeegee (6) or engage in lateral longitudinal grooves in the back strip (6), wherein the claw lugs (10, 13, 14) are each defined in the longitudinal direction of the yoke by an outer edge (12a) and an inner edge (12b), characterised in that the claw lugs (10) of at least one claw (5) of the wiper blade (2) are offset in the longitudinal direction of the yoke in relation to the bearing surface (8a) in such a way in the direction of the pivot bearing (15) of the claw yoke (4) that the outer edges (12a) of the claw lugs (10) are arranged within a zone which extends from inclusively half way along the maximum length (L) of the bearing surface (8a) as far as into the space between the inner edge (11b) of the bearing surface (8a) and the pivot bearing (15) of the claw yoke (4).
  2. A wiper blade according to claim 1, characterised in that there is a distance d, with d being equal to or greater than zero, between the inner edge (11b) of the bearing surface (8a) and the outer edges (12a) of the claw lugs (10, 13, 14).
  3. A wiper blade according to claim 1 or 2, characterised in that the two claw lugs (10) are aligned with one another, when the wiper blade is viewed from the side, or in that the distance d is of equal magnitude for both claw lugs (10).
  4. A wiper blade according to claim 1 or 2, characterised in that the claw lug (13) is offset in relation to the claw lug (14) in the longitudinal direction of the yoke or in that the distance d1 relating to the one claw lug (13) is different from the distance d2 relating to the other claw lug (14).
  5. A wiper blade according to claim 4, characterised in that the wiper squeegee (6) is bent in plan view and in that the distance d1 relating to the one claw lug (13) on the claw side located on the outside of the wiper squeegee bend is less than the distance d2 on the other claw side (14), which is located on the inside of the wiper squeegee bend.
  6. A wiper blade according to claim 5, characterised in that the distances d1 and d2 are dependent on the degree of bend of the wiper squeegee (6) bent in plan view.
  7. A wiper blade according to any one of the preceding claims, characterised in that the side of the claw base (8) facing the wiper squeegee (6) is convexly curved relative to the claw lugs (10, 13, 14) and/or the claw lugs (10, 13, 14) are convexly curved relative to the claw base (8).
  8. A wiper blade according to any one of the preceding claims, characterised in that the at least one claw (5) on the claw yoke (4) is an end claw of the wiper blade.
EP00954592A 1999-08-26 2000-08-05 Wiper blade for cleaning a windscreen, in particular, a curved windscreen of a vehicle Expired - Lifetime EP1206378B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19940492 1999-08-26
DE19940492A DE19940492A1 (en) 1999-08-26 1999-08-26 Wiper blade for cleaning a particularly curved window on a vehicle
PCT/EP2000/007620 WO2001014182A1 (en) 1999-08-26 2000-08-05 Wiper blade for cleaning a windscreen, in particular, a curved windscreen of a vehicle

Publications (2)

Publication Number Publication Date
EP1206378A1 EP1206378A1 (en) 2002-05-22
EP1206378B1 true EP1206378B1 (en) 2004-09-22

Family

ID=7919679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00954592A Expired - Lifetime EP1206378B1 (en) 1999-08-26 2000-08-05 Wiper blade for cleaning a windscreen, in particular, a curved windscreen of a vehicle

Country Status (7)

Country Link
US (1) US6742218B1 (en)
EP (1) EP1206378B1 (en)
JP (1) JP2003507254A (en)
BR (1) BR0013591A (en)
DE (2) DE19940492A1 (en)
ES (1) ES2228594T3 (en)
WO (1) WO2001014182A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136934A1 (en) * 2001-07-28 2003-02-13 Valeo Auto Electric Gmbh Windscreen wiper blade for motor vehicles has wiper batten systems pressed against windscreen by contact pressure applied through introduction less than 40mm apart
CN102822017B (en) * 2010-11-10 2016-06-01 阿斯莫有限公司 Windshield wiper blade
CN112264376A (en) * 2020-09-21 2021-01-26 常州捷佳创精密机械有限公司 Mechanical arm hook washing device, control method and cleaning equipment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1197338B (en) 1957-03-25 1965-07-22 John Will Anderson Holder for the bending device, which is arranged in grooves in a rubber wiper blade of windshield wipers and consists of sliding strips and spring strips
DE1505605C3 (en) * 1966-07-02 1975-01-23 Robert Bosch Gmbh, 7000 Stuttgart Wiper blade for vehicle windows
IT7953746V0 (en) * 1979-11-15 1979-11-15 Bosso Fister Sas WIPER BRUSH
JPH01293256A (en) * 1988-05-23 1989-11-27 Nippon Waipabureede Kk Wiper blade
DE3823001A1 (en) 1988-07-07 1990-01-11 Swf Auto Electric Gmbh Wiper blade for cleaning vehicle windows curved greatly in particular at the sides
IT1244564B (en) 1990-09-24 1994-07-28 Champion Spark Plug Divisione MONOSTRUCTURE WIPER SPATULA AND RELATED MANUFACTURING PROCEDURE

Also Published As

Publication number Publication date
EP1206378A1 (en) 2002-05-22
DE19940492A1 (en) 2001-03-01
ES2228594T3 (en) 2005-04-16
US6742218B1 (en) 2004-06-01
JP2003507254A (en) 2003-02-25
BR0013591A (en) 2002-05-07
DE50007925D1 (en) 2004-10-28
WO2001014182A1 (en) 2001-03-01

Similar Documents

Publication Publication Date Title
EP1695881B1 (en) Wiper blade for cleaning vehicle windows
EP1547883B1 (en) Wiper blade for cleaning vehicle windscreens
EP1802497B1 (en) Wiper blade
EP1363816B1 (en) Wiper arm with a pivoting connected wiper blade
WO2001062561A1 (en) Wiper blade for cleaning motor vehicle windows
DE3139445A1 (en) WIPER BLADE FOR WINDOW CLEANING SYSTEMS ON VEHICLES, ESPECIALLY ON MOTOR VEHICLES
EP1517818A1 (en) Fastening element for the wiper arm of a vehicle windshield wiper
WO2006063782A1 (en) Wiper system
DE3827869A1 (en) WIPER BLADE, ESPECIALLY FOR WINDOW WIPER SYSTEMS IN MOTOR VEHICLES
DE2523240A1 (en) WIPER BLADE FOR THE WIPER OF A CURVED WINDSHIELD
EP2531087B1 (en) Hand squeegee
DE3737040C2 (en)
EP1206378B1 (en) Wiper blade for cleaning a windscreen, in particular, a curved windscreen of a vehicle
DE10239447B4 (en) Railway window regulator for vehicles with a base plate and a sliding element
WO2001051324A1 (en) Wiper blade
DE60018975T2 (en) LINEAR WIPER SYSTEM WITH IMPROVED GUIDANCE OF THE CAR IN THE GUIDE CHANNEL
DE102020107708B4 (en) Windscreen wiper device for a vehicle window
DE102008017250B4 (en) Noise-dampened wiper blade for a windshield wiper on a vehicle
DE19844017C2 (en) windshield wipers
DE19961373A1 (en) Windscreen wiper blade for motor vehicles is reversible and has wiper blade with a wiper lip of different materials on either side
WO2001014183A1 (en) Wiper blade for cleaning a glass pane on a vehicle
DE60016001T2 (en) CHANGE LINEAR WIPER SYSTEM WITH AN IMPROVED DEVICE FOR LOADING THE CABLE
DE3923623A1 (en) AIR DEFLECTING BLADE FOR WINDOW WIPER DEVICE
DE102004056676B4 (en) Wiper system for vehicle windows
DE10257553A1 (en) Windshield wiper blade for a motor vehicle, has sprung slats partly surrounded by attached wiping strips

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020202

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VALEO WISCHERSYSTEME GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VALEO WISCHERSYSTEME GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50007925

Country of ref document: DE

Date of ref document: 20041028

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20041220

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2228594

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050623

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080121

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20080124

Year of fee payment: 8

Ref country code: GB

Payment date: 20080122

Year of fee payment: 8

Ref country code: IT

Payment date: 20080124

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080131

Year of fee payment: 8

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080805

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090303

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080805

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080901

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080805

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080806